Paper container



March 1929' D. N. VAN ALSTYNE ET AL 1,706,007

PAPER CONTAINER Filed June 29, 1927 Patented Ma. 19, 1929.

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application ma June 2a, 1027. Serial 1T0. 202,431.

This invention relates to paper containers, designed for dispensing ice-cream, jellies, liqnidsand moist products generally, and has for its object to rovide a fibrous Jar or bottle, comprising a tu ular or conical bod having normally open ends. A further object is to rovide novel construction of'the ends of the body, which are arranged with internal resilient rolls or folds that are disposed entirely within the walls of the body, for reinforcing said ends, and for facilitating nesting of the bodies dilring shipment and storage, said rolls and folds affording complementary means for locking the top and bottom closures to the body. A further object is to provide a disc-shaped closure for the filling end or mouth of the body, said disc being formed with a depending flange or rib comprising an annular crimp, whichis arranged to be inserted in the rolled mouth and to snap beneath and become interlocked with said roll when pressure is applied to the top of said disc, the peripheral portion of said disc beyond said flange comprisingaflexible apron which is adapted to overlie and conform to the rolled portion of the mouth, for protecting the pouring surface thereof, as well as for supplementing the seal effected by said roll and said crimp. And a further object is to provide a closure for the bottom of the body comprising a similar disc having a peripheral flange arranged to interlock with the cylindrical fold of the bottom. The top closure, except the said annular crim being disposed in a plane above and paral el to the roll of the mouth, for enabling the container to be completely filled.

We obtain these objects by the means set forth in the detailed description which follows,and as illustrated by the accompanying drawing, in which- Figure 1 is a top plan view of the complete container, with the cover attached. Fig. 2 is a central vertical section through the body of the container and the top and bottom closures, taken on line 2-2 of Fig. 1, showing the arrangement of the cover and the bottom. Fig. 3 is a side elevation of the complete con tainer. Fig. 4 is a top plan view of the cover of Figs. 1 and 2 when detached. Fig. 5 is a central vertical cross-section taken on line 55 of Fig. 4. Fig. 6 is a broken central vertical section through the mouth of the container, showing the closure of Fig. 5 applied thereto. Fi s. 7 and 8 are vertical sections, showing slig t modifications of the detached and'attached cover. And Fig. 9 is a broken central vertical section' showing another slight modification.

In the drawing, 2 representsthe hollowfrusto-conical bodyof t e container, which is preferably made of pliable paper or pulpboard and having normally open top and bottom ends, as 2' and 2. The mouth 2' is preferably formed with a continuous inward roll or bead 3,whose free margin 3 is preferably normally spaced from the adjacent wall for rendering the said margin more or less flexible when subjected to outward radial pressure. The bottom end 2 is preferably formed with an inward and upward fold 4, for providing an annular groove or socket 4, to receive the depending flange 4 of a discshaped closure 4, the latter being usually reinforced by a smaller disc 4 (see Fig. 2). The mouth is preferably closed and sealed by a circular removable cover or cap 5, whose medial disc-shaped portion 5 is preferably slightly crowned for enabling the closure to withstand the weight of other containers when they are filled, and stacked in cartons or upon shelves, without distorting the covers or weakening the seal at the point of contact with the bead 3. The closure 5 is formed near its peripheral margin with an annular depending rolled or folded rib or flange 5, which may be molded or pressed, as shown in Figs. 4 and 5, by suitable dies, wherein the upwardly facing annular groove, as 5', is normally open, and the peripheral margin of the closure comprises a shallow convex flexible apron or flange 5, which normally lies in a plane that is lower than the medial portion 5. By this construction and arrangement. of the closure 5, when the latter is applied to the beaded mouth 2' and pressure is applied downwardly axially, the outer face of the flange 5 engages the margin 3' simultaneously with the engagement of the top surface of the bead by the apron 5. As the pressure continues, the apron and the corresponding portion of flange 5 are flexed inwardly radially and substantially close the groove 5 opposite the margin 3 without destroying the roll or bulge at the bottom, as 5", of said flange. By this arran ement, theportion 5 of the flange 5 snaps eneath the margin 3' and effects the locking of the closure, as shown in Figs. 2 and 6. The grip of the flange 5 is enhanced by the slight flex- :ing of the margin 3' of the bead, and this yielding of the said margin prevents the v manner.

bulge 5 from crushing and flattening, which would tend to weaken the grip, as well as the seal. When the closure is finally seated, as

shown in Figs. 2 and 6, the periphery of the 1 'or storage, and the closures, while in the extended condition, shown in Figs. 5 and 7, also be nested, forfacihtating packing thereof. By formin the head 3 with its margin 3' separated'fromthe adjacent wall 7 ing the closure of the body enables the operator to readily and safely insert the flange 5 for. securely locking the closure and 'also for effecting a relatively broad annular seal. By construct- 5, as shown in the several sectional views, wherein the medial disc 5' lies substantially in the plane'of the top of the head 3, enables the container to be filled to the level of said top.

Having thus described our invention, what we claim, is-

1. In a container, a body having an up er end formed with a hollow inwardly roli ed head, the free edgeof which latter is spaced from the body so as to be movable outwardly of the body, a closure having a central portion formed with a depending rib of substanwith the fingers and tially U-shap'e. in cross-section engageable with said head and having its upper portion facing upwardly, the lower closed portion of the rib extending below and being formed .to snap beneath the bead, and the inner faces of theisides of the rib being engaged with each other at points opposite to the center of the head.

2. In a container, a body having an upper end formed with a hollow inwardly rolled bead, the free edge of which latter is spaced from the body so as to be movable outwardly of the body, a closure having a central portion formed with a depending rib of substantially U-shape in cross-section engageable with said head and having its upper portion facing upwardly, the lower closed portion of the rib extending below and being formed to snap beneath the bead, and the inner faces'of the sides of the rib being engaged with each other at points opposite to the center of the bead, said'central portion of the-closure being disposed in substantially the. plane of the upper end of the body and being crowned whereby to resist flattening by the weight of superimposed containers and whereby the pressure of such containers will increase the degree of engagement of the inner faces of the sides of the rib with each other and with the head.

In testimony whereof natures.

DUBLIN N. VAN ALSTYNE. JAMES VAN ALSTYNE.

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